Texas Instruments TMS320C67X/C67X+ DSP User Manual

Page 274

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SHL

Arithmetic Shift Left

3-214

Instruction Set

SPRU733

Pipeline
Stage

E1

Read

src1, src2

Written

dst

Unit in use

.S

Instruction Type

Single-cycle

Delay Slots

0

See Also

SHR, SSHL

Example 1

SHL .S1

A0,4,A1

Before instruction

1 cycle after instruction

A0 29E3 D31Ch

A0 29E3 D31Ch

A1 xxxx xxxxh

A1 9E3D 31C0h

Example 2

SHL .S2

B0,B1,B2

Before instruction

1 cycle after instruction

B0 4197 51A5h

B0 4197 51A5h

B1 0000 0009h

B1 0000 0009h

B2 xxxx xxxxh

B2 2EA3 4A00h

Example 3

SHL .S2

B1:B0,B2,B3:B2

Before instruction

1 cycle after instruction

B1:B0 0000 0009h

4197 51A5h

B1:B0 0000 0009h

4197 51A5h

B2 0000 0022h

B2 0000 0000h

B3:B2 xxxx xxxxh

xxxx xxxxh

B3:B2 0000 0094h

0000 0000h

Pipeline

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